X-59 is such an odd looking aircraft:
https://youtu.be/gR4Xuslczoo
The pilot has no forward window, and instead has a big TV. Some views of what the pilot sees are included in this video. There's an upper camera and a lower camera masked together.
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swope
@swope@mstdn.plus
mastodon
4.6.5
Aerospace engineer working to make aircraft greener & safer.
He/him. 🇺🇲
[TBD - What else goes in a profile?]
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Joined June 02, 2023
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Replying to
@sluttymayo@jorts.horse
View from the Metrolink AV line today in Southern California #socal #photography
RE: @trending@live.acarsdrama.com
When you leave the fasten seatbelt sign on for 5 hours.
Replying to
@floatybirb@mastodon.social
Replying to
@ShiitakeToast@beige.party
@ShiitakeToast
This 2025 paper proposes an 80% hydrogen / 20% helium semi-rigid airship where the helium is positioned as a protective buffer around critical components.
https://www.sciencedirect.com/science/article/pii/S2405896325022232
@passwordsarehard4 @Nickiquote @BobLefridge
Replying to
@passwordsarehard4@mastodon.social
@passwordsarehard4
@Nickiquote @BobLefridge
Lol ok.
But seriously, I think the main flaw with airships is that helium is expensive and non-renewable. Once it escapes into the atmosphere it's gone on any human timescale, and we're probably past peak helium already.
Replying to
@Nickiquote@mstdn.social
@Nickiquote
@BobLefridge
I don't know this specific design, but typically airships operate at very low pressure - relying on the low density of helium for buoyancy and only a fraction of a PSI to maintain the shape of the envelope.
I know of an observation balloon that became untethered in Iraq around 2006. The US military shot many holes in it trying to prevent it from drifting away, but the gas leaks out very slowly.
It's a bit like trying to open a plastic blister pack with a pushpin. 📌
Replying to
@Aaron_DeVries@mastodon.social
@Aaron_DeVries@mastodon.social
Wasn't the first proposal for a Europa melt-bot like 1999-2001?
I don't think the Europa subsurface ocean was known until Galileo got there.
Replying to
@mhoye@cosocial.ca
@mhoye@cosocial.ca I had no idea you could just say "pray with me" and then say a bunch of parody scripture and heresy and xtians are just like "amen".
Replying to
@reece@masto.canadiancivil.com
@reece
You mention São Paulo is sprawly but also surprisingly dense with shorter apartment towers. Do you think North American cities could realistically replicate that built form organically through zoning reform, or does it require the kind of top-down density that's politically off the table here?
Replying to
@simplenomad@rigor-mortis.nmrc.org
@simplenomad
"There's a turd floating through the air" -- Thomas Stafford
Apollo 10, 1969
Replying to
@elise@fedi.katze.sh
@elise
I met some folks from https://www.neuro-space.de/ ... if their ride-along satellite on Artemis II was successful they may be growing soon?
I think there may be a broader "new space" cluster in Berlin, too.
Replying to
@Aaron_DeVries@mastodon.social
@Aaron_DeVries@mastodon.social
Keep sending us your Hansens, Hadfields, and everything else wonderful from CSA.
Replying to
@Aaron_DeVries@mastodon.social
@Aaron_DeVries@mastodon.social
If you are a US citizen, let your representatives know.
Once again the president is trying to hollow out NASA.
Replying to
@clolsonus@social.makerforums.info
@clolsonus
I like my current arrangement where I can go visit the snow when I want, but the snow doesn't come around to bother me.
Replying to
@stux@mstdn.social
@stux@mstdn.social
Do you mean to include plain-automation bots?
I think those can be useful in some cases.
But I agree that LLMs disguised as humans harassing humans is certainly bad.
Replying to
@swope@mstdn.plus
Then even at normal temperature, slow evaporation over days means the amount of water in those cups drops below threshold in enough cups to break ECC margins -- corrupting the files.
I don't have a deep enough understanding of the physics to tell you if that analogy has much validity. But this is my hunch.
@job@bsd.network @Aaron_DeVries@mastodon.social @evey@chaos.social
Replying to
@evey@chaos.social
@evey@chaos.social
I think that's intuitive for storage, but the hot-at-write-time weakness may be a little different.
I'm imagining an array of cups and the drive controller is pouring water in them as the write operation. When the system is hot, the cups are jiggling and aiming the carafe is shaky. Not a lot of water gets in the intended cups, and some spills into the wrong cups. Enough goes in for the theshold of the immediate validity check, though.
@job@bsd.network @Aaron_DeVries@mastodon.social
Replying to
@job@bsd.network
@job@bsd.network
No, I think it's more like using hot glue on plastic. While it's hot the glue sticks to the plastic, but as it cools your whole crafting project falls apart.
(Just a metaphor, not the physics)
@evey@chaos.social @Aaron_DeVries@mastodon.social
Replying to
@happydisciple@mendeddrum.org
@happydisciple@mendeddrum.org
Yes, I imagine that something like that is going on. And the manufacturer is honest about the 35C max operating temperature.
For the user, they write a bunch of data and immediately verify the data are good -- not looking closely at the temperature log. But hours/days later their files become corrupted.
It's something to be aware of, and a curious physics question.
@Aaron_DeVries@mastodon.social
Replying to
@valpackett@social.treehouse.systems
@valpackett@social.treehouse.systems
That payload was writing continuously about as fast as the drives could go. Not a typical use case I think.
@Aaron_DeVries@mastodon.social
Replying to
@andi@snac.sonnenmulde.at
@andi
Sorry I don't have the data available on the case or internal temperatures.
I agree that it was probably quite high.
@Aaron_DeVries@mastodon.social
Replying to
@swope@mstdn.plus
I kinda supposed that there was an ideal temperature for writing that the drives try to maintain, but when ambient is too high they can't. Then what gets written is on the edge of being readable, and normal temperature storage losses degrade that in a few hours.
Lots of hand waving on my part. We just made a procedure and carried on. But it would be pretty insidious to look at your data right after recording and it looks good, but it's gone the next week.
@Aaron_DeVries@mastodon.social @rachelplusplus@tech.lgbt
Replying to
@rachelplusplus@tech.lgbt
This is interesting.
Sadly, we didn't get the internal NVMe temperatures during our environmental testing.
I think the drives' spec said 35°C ambient for the max operating temperature, and we would typically see 45°C internal from nvme smart-log /dev/nvme0 (I might not be remembering the command correctly).
Replying to
@sudo200@layer8.space
Replying to
@Aaron_DeVries@mastodon.social
@Aaron_DeVries@mastodon.social
I would also like to know.
Replying to
@Aaron_DeVries@mastodon.social
@Aaron_DeVries@mastodon.social
While doing environmental testing on a helicopter payload, I learned that NVMe drives (and perhaps all SSDs) can write data at high ambient temperatures >40 C, but the data is less permanent than if you write data at normal ambient temperatures.
So on hot days we had to hurry and copy our 4TB drives after the flight because the data had a half-life of a dozen hours or so.
That phenomenon is already documented, but I don't think it's widely known.
Replying to
@catsalad__dup_5@infosec.exchange
@catsalad@infosec.exchange
Looks like the head and tail loaded okay, but cat_body only got the LOD model.
Replying to
@reece@masto.canadiancivil.com
@reece
These kinds of projects always remind me of "cake fail" images, for example
Replying to
@bontchev__dup_55953@infosec.exchange
@bontchev@infosec.exchange
Slot machines have more uptime.
Replying to
@airy@booping.synth.download
@airy - that seems reasonable. I thought maybe falling in the water was a sort of rebirth - like Noodle was Mowgli in a past life. And, I wondered if the dragon was an allusion to something I didn't recognize. The dragon seems oddly specific looking. Oh well, animators can just be original without everything being a reference.
I saw the Gorillaz animated music video today on YouTube, and at about a minute in, Mowgli character crosses a dragon and transforms into Noodle.
I feel like there's some #Transgender symbolism going over my head.
Can anyone explain it to me?
Or am I doing a pareidolia?
Replying to
@abmurrow@hachyderm.io
@abmurrow@hachyderm.io
Upside-down flag indicates distress...
🇫🇷 = Keep clear of me, I'm in distress
@Natasha_Jay@tech.lgbt
Replying to
@kevin@mastodon.km6g.us
@kevin@mastodon.km6g.us
I accidentally ordered AAAA batteries once. I still have them. Never seen thing that takes them.
Replying to
@charlotte@akko.chir.rs
@charlotte@akko.chir.rs
Now I'm inspired to 3D print Julia sets as ornaments.
(Here's an example, not my art.)
https://i.materialise.com/shop/item/image/6d3987cf-843e-438e-9ce7-69f82d7f0874/780/585/preview.jpg
@superbetsy@mastodon.social
Replying to
@charlotte@akko.chir.rs
@charlotte@akko.chir.rs @superbetsy@mastodon.social
Quaterniomas would avoid singularities. Nobody wants a their tree to get gimbal locked.
Replying to
@charlotte@akko.chir.rs
@charlotte@akko.chir.rs @superbetsy@mastodon.social
Up, East, North would be right-handed.
North, East, Down (NED) is more common in my field.
This meme assumes a flat Earth.
Replying to
@austincnunn@weird.autos
@austincnunn @ZeKik @dan @davidzipper
I still think the insurance companies are mainly on the hook for their own clients and not the other parties, averaged over all their claims/settlements/lawsuits, so they have the same selfish motivation to shift risk onto the other party.
In shared-fault cases, do courts even consider the relative height or mass of the vehicles?
I think society's math formulas have morphed over time to insulate the riskier vehicles from the real cost of their harm.
Replying to
@austincnunn@weird.autos
@austincnunn @ZeKik @dan @davidzipper
I don't think that's true.
https://www.caranddriver.com/car-insurance/a36331753/are-suvs-cheaper-to-insure/